Use as directed by the pharmacist or physician. For daily over-the-counter night care, apply 3 to 4 drops evenly across the face

Contraindications of Estelin Vitamin A Retinol Face Serum

• Pregnancy & Breastfeeding: Do NOT use. Topical retinoids are strictly contraindicated during pregnancy or lactation due to potential systemic risks.
• Hypersensitivity: Avoid if you have a known history of severe sensitivity to Vitamin A derivatives.
• Compromised Skin: Do not apply over active sunburns, open wounds, or weeping eczema patches.

Side Effects of Estelin Vitamin A Retinol Face Serum

• Common: Mild flaking, surface dryness, or a slight tingling sensation when first starting.
• Rare: Intense redness, burning, or allergic hives.
• Action: If peeling becomes uncomfortable, drop usage back to twice a week or apply your moisturizer first to create a protective buffer.

Precautions and Warnings

• Nighttime Only: Sun exposure degrades Vitamin A and compromises its efficacy; use this product strictly in your evening routine.
• Sun Protection Required: Retinol increases cellular turnover, making new skin highly vulnerable to sunburn. Apply a broad-spectrum sunscreen ($\text{SPF } 30+$) daily without exception.
• Avoid Ingredient Overlap: Do not mix with benzoyl peroxide, salicylic acid, or glycolic acid in the exact same step, as this will severely strip your skin barrier.

Pack Size: 30 ml (1.01 FL. oz) glass bottle with an integrated dropper.

Form: Topical Facial Night Serum.